Anthelmintics

ABSTRACT

Novel anthelmintics are described that contain as active ingredient a compound of formula   &lt;IMAGE&gt; (I)  or, in its hydrated form, of formula Ia   &lt;IMAGE&gt; (Ia)  in which R1 and R2 are each, independently of the other, C1-C6alkyl, allyl, C3-C6cycloalkyl or phenyl; and R3 is unsubstituted or mono- or poly-substituted phenyl, biphenylyl or phenoxyphenyl, the substituents being selected from the group halogen, cyano, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxyl, C1-C3haloalkoxy, C1-C3cyanoalkyl, nitro, amino, and C1-C3alkyl substituted by C1-C3alkoxycarbonyl, including the tautomeric forms thereof and the physiologically tolerable salts thereof. The preparation, formulation and use of those active ingredients are also described.



